Programming Of Computer - VDO Cyclecomputing A8 Instruction Manual

Instruction manual A8
CYCLECOMPUTING

5. Programming of computer

To show Speed and calculate Trip Distance and the other data, your VDO A8 needs the precise wheelsize = wheel circumference
(in mm or inch) of your bike.
5.1 HOW TO DETERMINE YOUR WHEELSIZE:
The wheelsize setting can be done with an accuracy of 1 mm or 0.1 inch.
The table below shows the most common tire sizes and the related wheelsize-data in mm and inch.
This data not necessarily corresponds with the correct data of your bike.
Tire size WS in mm KMH WS in inch MPH Tire size
47-305 16x1,75 1272 50,1 20-571 26x3/4
47-406 20x1,75 1590 62,6 32-630 27x1 1/4
34-540 24x1 3/8 1948 76,7 40-622 28x1,5
47-507 24x1,75 1907 75,1 47-622 28x1,75
23-571 26x1 1973 77,7 40-635 28x1 1/2
40-559 26x1,5 2026 79,8 37-622 28x1 3/8
44-559 26x1,6 2051 80,7 18-622 700x18C
47-559 26x1,75 2055 80,9 20-622 700x20C
50-559 26x1,9 2060 81,1 23-622 700x23C
n/a 26 x 1,95 2070 81,5 25-622 700x25C
54-559 26x2,00 2075 81,7 28-622 700x28C
n/a 26 x 2,1 2080 81,9 32-622 700x32C
57-559 26x2,125 2133 84,0 37-622 700x37C
37-590 26x1 3/8 2105 82,9 40-622 700x40C
If your Tyre Size is not shown in the Table, you can find your correct wheelsize as explained below:
STEP 1 Stand your bicycle upright. With your tyre inflated to its proper pressure, rotate your front wheel so that the valve is located at
the bottom (6 o'clock position). Make a mark on the floor to indicate the valve location.
STEP 2 Roll the bicycle forward in a straight line for one complete wheel revolution, until the valve is again at the bottom. Make a
mark on the floor to indicate this valve location.
STEP 3 Measure the distance between the marks in millimetres or inches (1 inch = 25.4mm). This value is your wheel size = wheel
circumference.
5.2 SELECTION OF km OR m-READING
The VDO A8 can show speed and all related data either in km or Miles. You can switch at any time from km to m-reading
and vice versa. All data TRP, AVS, MXS, ODO will automatically be re-calculated.
STEP 1 Get TRP in display, press and hold SET-button for 3 sec.
STEP 2 km or m are flashing. Use MODE-button to select km or m-reading.
STEP 3 Press SET-button to confirm above selection. The A8 will now show the set-mode for the wheelsize = wheel
circumference.
5.3 PROGRAMMING THE WHEELSIZE
After pressing SET-button to confirm km or m selection, the A8 will now show the set-mode for the wheelsize = wheel circumference.
Factory settings for wheelsize are 2155 mm for km-reading and 84, 8 inch for m-reading.
Attention: For km-reading the wheelsize needs to be set in mm, for m-reading the wheelsize needs to be set in inches.
STEP 1 Change the flashing wheelsize-digit to requested value by pressing the MODE-button.
STEP 2 Press SET-button to confirm this setting and move to next digit.
STEP 3 Repeat Step 1 and Step 2 until all digits have been set to your wheelsize.
STEP 4 Press and Hold SET-button for 3 sec. to finish Wheelsize-Setting and return to TRP-display.
5.4 CLOCK SETTING
Your VDO A8 shows actual time in 24:00 (hh:mm) format.
STEP 1 Get CLK into display. Press and Hold SET-button for 3 sec. The Clock SET-Mode will be shown in display.
STEP 2 Use the MODE-button to change the flashing hour-digits. Hold MODE-button for fast setting.
Confirm your settings by pressing the SET-button. This confirmation will also change to Minute-setting.
STEP 3 Use the MODE-button to change the flashing Minute- digits. Hold MODE-button for fast setting.
STEP 4 Press and hold SET-button for 3 sec. to finish Clock-Setting and return to CLK-display.
5.5 PROGRAMMING OF ODOMETER
The total distance counter ODO can be programmed anytime, for example after a change of battery or to enter the ODO data of your old
computer into your new A8.
STEP 1 Get ODO into display, press and Hold SET-button for 3 sec. The ODO-Set-Mode will be shown in display.
STEP 2 Press MODE-button to change the flashing digit to requested value.
Confirm this setting by pressing the SET-button and simultaneously change to next digit (flashing).
STEP 3 Repeat STEP 1 and STEP 2 until all digits have been set to requested value.
STEP 4 Press and Hold SET-button for 3 sec. to finish ODO-setting and return to ODO-display.
GB
WS in mm KMH WS in inch MPH
!
1954 76,9
2199 86,6
2224 87,6
2268 89,3 MINIMUM WS: 100 mm / 3,94"
2265 89,2
MAXIMUM WS: 3999 mm / 157,44"
2205 86,8
2102 82,8
2114 83,2
2133 84,0
2146 84,5
2149 84,6
2174 85,6
2205 86,8
2224 87,6
F
P05
F
P06
F
P07
F
P08
F
P09
P05
1x
WS in mm / inch
P06
P07
P08
P09
P07